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8502125 = 53174001
BaseRepresentation
bin100000011011…
…101101101101
3120222221201112
4200123231231
54134032000
6502121405
7132160352
oct40335555
916887645
108502125
114887855
122a20265
1319b8b58
1411b4629
15b2e235
hex81bb6d

8502125 has 16 divisors (see below), whose sum is σ = 11237616. Its totient is φ = 6400000.

The previous prime is 8502121. The next prime is 8502127. The reversal of 8502125 is 5212058.

It can be written as a sum of positive squares in 8 ways, for example, as 3948169 + 4553956 = 1987^2 + 2134^2 .

It is not a de Polignac number, because 8502125 - 22 = 8502121 is a prime.

It is a super-2 number, since 2×85021252 = 144572259031250, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8502125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8502121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125 + ... + 4125.

It is an arithmetic number, because the mean of its divisors is an integer number (702351).

Almost surely, 28502125 is an apocalyptic number.

8502125 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8502125 is a deficient number, since it is larger than the sum of its proper divisors (2735491).

8502125 is a wasteful number, since it uses less digits than its factorization.

8502125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4033 (or 4023 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 8502125 is about 2915.8403591418. The cubic root of 8502125 is about 204.0997605751.

The spelling of 8502125 in words is "eight million, five hundred two thousand, one hundred twenty-five".

Divisors: 1 5 17 25 85 125 425 2125 4001 20005 68017 100025 340085 500125 1700425 8502125